---
id: CVE-2026-93799
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: iwlwifi: mvm: validate sta_id in BA window status notif

  BA_WINDOW_STATUS_NOTIFICATION_ID extracts a 5-bit sta_id from the
  firmware notification and uses it to in…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: iwlwifi: mvm: validate sta_id in BA window status notif

  BA_WINDOW_STATUS_NOTIFICATION_ID extracts a 5-bit sta_id from the
  firmware notification and uses it to in…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    bb08fbbbd5568d33069485ecb0a1657f115a4e9f
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    e35ae757c6462bfd3437bf58121bb721fe1f790c
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    6aa77efaea9efea92e3090c35ad348fd759a3cf3
  - Linux < 6.12.111
  - Linux < 6.18.53
  - Linux (all versions)
published: '2026-09-24'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T05:17:03.193'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93799'
references:
  - url: 'https://git.kernel.org/stable/c/6aa77efaea9efea92e3090c35ad348fd759a3cf3'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/bb08fbbbd5568d33069485ecb0a1657f115a4e9f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e35ae757c6462bfd3437bf58121bb721fe1f790c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-24T16:47:15.899Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

wifi: iwlwifi: mvm: validate sta_id in BA window status notif

BA_WINDOW_STATUS_NOTIFICATION_ID extracts a 5-bit sta_id from the
firmware notification and uses it to index fw_id_to_mac_id[] without
bounds checking. Validate sta_id before array access to prevent
out-of-bounds indexing.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.